data rate of wireless video transmitter

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Dawn Fong
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Joined: Mon Jun 25, 2018 8:36 pm

data rate of wireless video transmitter

Post by Dawn Fong »

In the purchase of wireless video transmission equipment, according to our needs to choose the transmission distance, transmission delay, compression, transmission video clarity, stream and so on. For those who enter this industry, the first few selection factors can be directly understood from the text, this article will look at the wireless video transmission equipment stream.
Overview
Data Rate (Data Rate) refers to the data traffic used by a video file per unit of time. It is also called the code rate and is the most important part of the picture quality control in video coding. Generally, the unit we use is kb/s or Mb/s. Generally speaking, the larger the code stream of a video file, the smaller the compression ratio and the higher the picture quality. The larger the code stream, the greater the sample rate per unit time, the higher the data stream, the higher the precision, and the closer the processed file is to the original document. The better the image quality is, the clearer the picture quality is, and the more the decoding capability of the playback device is required. high.
Of course, the larger the code stream is, the larger the file size is. The calculation formula is file volume = time X code rate/8. The file storage space is calculated as follows:
1. 720P Megapixel Camera
Normal stream: 2Mb/8 *3600S?900MB 1 hour about 900MB space
Maximum stream: 3Mb/8 *3600S?1350MB 1 hour about 1350MB space
2. 1080P Megapixel Camera
Normal stream: 4Mb/8 *3600S?1800MB 1 hour about 1800MB space
Maximum stream: 6Mb/8 * 3600S ? 2700MB 1 hour about 2700MB space
3. D1 analog camera
Normal stream: 1Mb/8 *3600S?450MB 1 hour about 450MB space
Maximum stream: 1.5Mb/8 * 3600S ? 675MB 1 hour about 675MB space
How to choose the stream of wireless video transmission products
Due to the wide variety of wireless video transmission products, different application fields require different code streams. For example, when the wireless video transmission equipment is used for shooting in a wireless multi-camera, the code stream is 8M; when it is one-to-one, the code stream is 15M.

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